coast

coast,

land bordering an ocean or other large body of water. The line of contact between the land and water surfaces is called the shoreline. It fluctuates with the waves and tides. Sometimes the terms coast and shore are used synonymously, but often shore is interpreted to mean only the zone between the shorelines at high tide and low tide, and coast indicates a strip of land of indefinite width landward of the shore. Classically, coasts have been designated as submergent if they resulted from a rise in the relative sea level and emergent if they resulted from a decline. Young submergent coasts usually are irregular and have deep water offshore and many good harbors, either bays or estuaries. Much of the coast of New England and most of the Atlantic coast of Europe are young submergent coasts according to this classification scheme. Gradually the submergent coast, subjected to erosive attacks of the ocean and other agents, becomes mature. Headlands are worn back to form cliffs, at the base of which deposits of eroded material accumulate as fringing beaches; spits and bars also grow up from material that is carried by currents and deposited in deeper water. The shoreline is called mature when it is smooth, the headlands having been cut away and the bays either filled up or closed off by spits. Emergent shorelines usually have shallow water for some distance offshore. Such shorelines are found along the Atlantic coast of the SE United States and along part of the coast of Argentina, near the Río de la Plata. This classification system does not adequately describe many coasts, partly because many of them exhibit features of both submergence and emergence. Because of these and other problems a classification system that is based on the most recent and predominant geologic agent forming the coast has become popular. Under this scheme, there are essentially two major types of coasts. Primary coasts are youthful coasts formed where the sea rests against a land mass whose topography was formed by terrestrial agents. These coasts include land erosion coasts (Maine), volcanic coasts (Hawaii), deposition coasts (Nile Delta coast), and fault coasts (Red Sea). Secondary coasts are formed chiefly and most recently by marine agents, and may even be primary coasts that have been severely modified by wave action. These coasts include wave erosion coasts, marine deposition coasts, and coasts built by organisms (reefs and mangrove coasts). The nature of the coastline of a country or a state is an important factor in its economic development because it relates to defense, fishing, recreation, and overseas commerce.

And so he was rather contented than otherwise as he made his way in the direction of the coast, for while he enjoyed the liberty and the savage pleasures of the wild his conscience was at the same time clear, for he knew that he was doing all that lay in his power to return to his parents.

It was on the coast of Tehama, for there not only did this display of zoophytes flourish beneath the level of the sea, but they also formed picturesque interlacings which unfolded themselves about sixty feet above the surface, more capricious but less highly coloured than those whose freshness was kept up by the vital power of the waters.

The little steamer was already flapping her way eastward of the big crescent of shipping, and the low Essex coast was growing blue and hazy, when a Martian appeared, small and faint in the remote distance, advancing along the muddy coast from the direction of Foulness.

In all the devious tracings the course of a sailing-ship leaves upon the white paper of a chart she is always aiming for that one little spot - maybe a small island in the ocean, a single headland upon the long coast of a continent, a lighthouse on a bluff, or simply the peaked form of a mountain like an ant-heap afloat upon the waters.

To promote and protect these enterprises, a company was incorporated by the Russian government with exclusive privileges, and a capital of two hundred and sixty thousand pounds sterling; and the sovereignty of that part of the American continent, along the coast of which the posts had been established, was claimed by the Russian crown, on the plea that the land had been discovered and occupied by its subjects.

Skirting along the north coast of Sicily, passing through the group of Aeolian Isles, in sight of Stromboli and Vulcania, both active volcanoes, through the Straits of Messina, with "Scylla" on the one hand and "Charybdis" on the other, along the east coast of Sicily, and in sight of Mount Etna, along the south coast of Italy, the west and south coast of Greece, in sight of ancient Crete, up Athens Gulf, and into the Piraeus, Athens will be reached in two and a half or three days.

All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.